Under-Coatin Protection

[surge s14]

i grinded down my wheel wells i knew there was rust
http://i164.photobucket.com/albums/u17/surges14/My%20S13/DSC00688.jpg

and i tried spata paint its mostly used for trunks only not very tough i could scrap it off with my nails after a 3 day cure.
http://i164.photobucket.com/albums/u17/surges14/My%20S13/DSC00721.jpg

i was looking online i fount about rubberized coating has anyone tried it?

[nsn240]

A know a lot of guys on here go with truck bed liner... hard and very durable. You can buy it in roll on and spray can

[r6_240sx]

Grinding usually gives off a smooth finish, not good for paint adhesion. Bare metal should be prepped to 80 grit.

It is very important you clean the surface real well with some wax and grease remover, this is the key to making your paint stick. Then lay down some epoxy primer on it.

[projectRDM]

The car is undercoated from the factory, so it works fine. I usually recoat all the OE areas as well as areas not originally coated like above the fuel tank, subframe, and in the transmission tunnel. It's durable, cheap, and be reapplied as needed. Bedliner material is awesome but it's a lot more work and expense.

[ixfxi]

http://clearcorners.com/temp/undercoating.jpg

as r6 mentioned above, you'll want to seal the metal immediately, then apply undercoating. you dont want to trap moisture.

i just purchased the above parts for my undercarriage/wheelwells.

[surge s14]

yeah i know about it but dose it work?

where can i pick this up

i haven't see it at any automotive stores

[ixfxi]

you buy it from a 3m distributor, dummy. you want the answers spoon-fed? jeeez, you can even pick it up off ebay.

come on now, pics and part numbers were posted - what more do you want. if 3m is too difficult to buy, search eastwood - they also sell similar stuff.

[projectRDM]

yeah i know about it but dose it work?

where can i pick this up

i haven't see it at any automotive stores

Your automotive stores must blow. It's in the paint section at every Napa, Advance, AutoZone, O'Reillys, every place I've ever been to. Right with the bondo and fiberglass. It's just an aerosol can but it's seriously messy and will get on everything. If you're doing an underbody or wheel wells, lay down some paper under the car, you'll get a fuckton of overspray.

Welcome to Earth.

[civilized_drifter]

i used one kind of rubber under coat and when i spilled oil on it the shit came right up

[driftking777]

dont know if anyone said it yet. but the best of the best

POR15

[r6_240sx]

POR-15 is good stuff. I totally forgot about that.

Use POR-15 or some epoxy primer, it's recommended you top coat it, but the wheel wells aren't exposed to any UV rays so it's not necessary IMO.

[OverBoost]

Has anyone successfully used RustBullet for situations like this? I've seen that get good reviews, as well as something similar from Eastwood called Rust Encapsulator.

[dori_sil8t]

por15 owns all.. i painted the front to back with por drove the car the whole winter not a spot of rust.(i also used honey goo as a under coating)
just wear shitty cloths and gloves when u use it, cuz its a bitch to get off ur skin.

[Bigsyke]

DONT, that shit last 4 years, cracks,traps moisture, rusts 10x faster.

Remove all undercoating, epoxy primer.

If you live where they salt a ton, you will see the rust usually is only where the undercoating is.

Rubber, tar both will crack.

Maybe some epoxy primer, base coat and chipguard.

The part of my wheel wells in the rear that have 0 undercoating, but still the factory paint is flawless.

[silpena]

want to know the best undercoating for your car? heres a secret..... look up the oem repair procedures for undercoating repair. It should be under frame rail repairs or major structural repairs. If u like i can look it up since i have acess to mitchell on demand for autobody repairs that are all i-car based repairs.

[shinhed]

I've used Herculiner after epoxy priming and seam sealing. NO worries.